Problem Display
PID: 46245 (2R5/7n/2Npr1RN/pppk3p/4rPp1/1Pp5/Q3B1p1/2K3B1 w - - 0 1)

Cuppini, Alessandro

1st Comm., The Problemist, 2002

2R5/7n/2Npr1RN/pppk3p/4rPp1/1Pp5/Q3B1p1/2K3B1

#4

10 + 12


4901 Best Problems 2006

SOLUTION


  • SOUND
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qd3+
          • 2...Rd4
            • 3.Qf5+
              • 3...Re5
                • 4.Se7#
      • 1...Rxf4
        • 2.Qd3+
          • 2...Rd4
            • 3.Qf5+
              • 3...Re5
                • 4.Se7#
      • 1...Rxg6
        • 2.Qd3+
          • 2...Ke6
            • 3.Qxe4+
              • 3...Kf6
                • 4.Qe7#
              • 3...Kd7
                • 4.Qe8#
      • 1...Rf6
        • 2.Se7+
          • 2...Ke6
            • 3.Qxe4+
              • 3...Kd7
                • 4.Bxb5#
          • 2...Rxe7
            • 3.Qd3+
              • 3...Ke6
                • 4.Qf5#
      • 1...Re3
        • 2.Qf5+
          • 2...R6e5
            • 3.Se7+
              • 3...Kd4
                • 4.Qd3#
      • 1...R6e5
        • 2.fxe5
          • threat
            • 3.Rxd6#
          • 2...Sf6
            • 3.Rxf6
              • threat
                • 4.Rxd6#
              • 3...Rxe5
                • 4.Qd3#
              • 3...dxe5
                • 4.Se7#
                • 4.Rd8#
      • 1...Re8
        • 2.Qd3+
          • 2...Rd4
            • 3.Qf5+
              • 3...Re5
                • 4.Se7#
      • 1...a4
        • 2.Qd3+
          • 2...Rd4
            • 3.Sb4+
              • 3...cxb4
                • 4.Qxd4#
            • 3.Qf5+
              • 3...Re5
                • 4.Se7#

FEATURES


NOT CLASSIFIED


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).